Interfacial Interdiffusion and Magnetic Properties of Transition Metal Based Materials

  • M. Freyss
  • D. Stoeffler
  • S. Miethaner
  • G. Bayreuther
  • H. Dreyssé

Abstract

Experimental results and calculations of the Cr/Fe system magnetic order are reported. The role of the interfacial diffusion of Cr in Fe substrate during the Cr growth on Fe(001) is particulary investigated. The magnetic moment distribution is computed in the real-space by means of a self-consistent Hubbard-type tight-binding Hamiltonian. A simulation of the variation of the total sample magnetization during Cr growth shows that the more Cr and Fe are interdiffused at the interface, the more important is the decrease of the magnetization. The effects of this interdiffusion are found to be more important if the growth mode is not layer by layer. The local magnetic moments are strongly affected by this interdiffusion. Experimental studies are explained within this framework. For Fe/Cr/Fe trilayers, experimental evidences of spin-flip in the upper Fe film are shown. Limitations and extensions of the model are discussed.

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References

  1. 1.
    See for instance J. A. C. Bland and B. Heinrich, Ultrathin Magnetic Structures I and II ( Springer, Berlin, 1994 ).Google Scholar
  2. 2.
    For instance more than 30 papers have been presented in the “Fe/Cr Interface Magnetism Workshop” held in Strasbourg, 2–3 june 1996.Google Scholar
  3. P. Grünberg et al., Phys. Rev. Lett. 57, 2442 (1986).Google Scholar
  4. M. N. Baibich et al., Phys. Rev. Lett. 61, 2472 (1988)Google Scholar
  5. A. Barthelemy, A. Fert, R. Morel, and L. Streren, Physics World, 34 (november, 1994 ).Google Scholar
  6. 5.
    For a recent review see H. Dreyssé and C. Demangeat, Surf. Sci. Rep. 28, 65 (1997).Google Scholar
  7. 6.
    A. Vega, D. Stoeffler, H. Dreyssé, and C. Demangeat, Europhy. Lett. 31, 561 (1995).CrossRefGoogle Scholar
  8. 7.
    C. Turtur and G. Bayreuther, Phys. Rev. Lett. 72, 1557 (1994).CrossRefGoogle Scholar
  9. 8.
    P. Fruchs, K. Totland, and M. Landolt, Phys. Rev. B 53, 3293 (1995).Google Scholar
  10. 9.
    A. Davies, J. A. Stroscio, D. T. Pierce, and R. J. Celotta, Phys. Rev. Lett. 76, 4175 (1996).CrossRefGoogle Scholar
  11. 10.
    R. Pfandzelter, T. Igel, and H. Winter, Phys. Rev. B 54, 4496 (1996).CrossRefGoogle Scholar
  12. 11.
    D. Venus and B. Heinrich, Phys. Rev. B 53, R1733 (1996).CrossRefGoogle Scholar
  13. 12.
    D. Stoeffler, A. Vega, H. Dreyssé, and C. Demangeat, Mat. Res. Soc. Symp. Proc. 384, 247 (1995).CrossRefGoogle Scholar
  14. 13.
    D. Stoeffler, Ph.D. Tesis, Strasbourg, 1992 (unpublished); D. Stoeffler, F. Gautier, J. Magn. Magn. Mater. 147, 260 (1995).CrossRefGoogle Scholar
  15. 14.
    M. Freyss, D. Stoeffler and H. Dreyssé, Phys. Rev. B 54, R12 677 (1996).Google Scholar
  16. 15.
    M. Freyss, D. Stoeffler, and H. Dreyssé, Phys. Rev. B 56, 6047 (1997).CrossRefGoogle Scholar
  17. A. Vega et al., Phys. Rev. B 49, 12 797 (1994).Google Scholar
  18. 17.
    S. Miethaner and G. Bayreuther, J. Magn. Magn. Mater. 148, 42 (1995).CrossRefGoogle Scholar
  19. 18.
    S. Miethaner and G. Bayreuther, to be published.Google Scholar
  20. 19.
    D. Stoeffler and F. Gautier, J. Magn. Magn. Mater. 156, 114 (1996).CrossRefGoogle Scholar
  21. 20.
    J. Unguris, R. J. Cellota, and D. T. Pierce, Phys. Rev. Lett. 67, 140 (1991).CrossRefGoogle Scholar
  22. 21.
    P. Bruno and C. Chappert, Phys. Rev. Lett. 67, 1602 (1991).CrossRefGoogle Scholar
  23. 22.
    D. Stoeffler and F. Gautier, Prog. Theor. Phys. Suppl. 101, 139 (1990); D. Stoeffler and F. Gautier, Magn. Magn. Mater. 121, 259 (1993).Google Scholar
  24. 23.
    F. Herman, J. Sticht, and M. van Schilegaarde, J. Appt. Phys. 69, 4783 (1991).CrossRefGoogle Scholar
  25. 24.
    V. Heine and J. H. Samson, J. Phys. F 13, 2155 (1983).CrossRefGoogle Scholar
  26. 25.
    D. Stoeffler and H. Dreyssé, Solid State Commun. 79, 645 (1991).CrossRefGoogle Scholar
  27. F. U. Hillerbrecht et al., Europhy. Lett. 19, 711 (1992).Google Scholar
  28. I. Turek et al., Phys. Rev. Lett. 74, 2551 (1995).Google Scholar

Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • M. Freyss
    • 1
  • D. Stoeffler
    • 1
  • S. Miethaner
    • 2
  • G. Bayreuther
    • 2
  • H. Dreyssé
    • 1
  1. 1.Institut de Physique et Chimie des Matériaux de StrasbourgUniversité Louis PasteurStrasbourgFrance
  2. 2.Institut für Experimentelle and Angewandte PhysikUniversität RegensburgRegensburgGermany

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